Spam getting past Akismet

I’m not using this blog at the moment (havent for over a year), but I don’t want to lose the subdomain so I’m not deleting it.

However, I am now getting a constant/steady stream of spam comments which is not being picked up by Akismet. I don’t quite understand why, because on my main blog, where I also have Akismet, its working just fine to stop similar posted comments. I’ve got them going to moderation because I wanted to approve any comment with 1 or more links, but this stuff should be getting stopped and its not.

In any case, all commenting on this blog is now closed. Ditto pingbacks